Abstract
The (±)-Bicyclo[2.2.1]heptan-2-one ((±)-Norcamphor) 1 and 8-Oxatricyclo[5.2.1.02,6]decane 3 react with carbon disulfide, strong base and an alkylating agent in dipolar aprotic solvents giving racemic mixtures of 3- or 9-dialkylthiomethylene compounds 2a–e or 4a–d, respectively.